I would say that our "ripple effect" is that we chose to school my oldest son (currently in Kindy, but working several grade levels ahead) through a homeschooling charter school, here in CA. It has been the perfect hybrid solution for my accelerated, but very extroverted, learner. He takes fun, enrichment classes on site at the school 3 days per week -- stuff like Spanish, Lego, gardening, robotics, music, art, strategy games, programming, etc., and receives a classically-inspired homeschool day with me 3 times per week. In terms of materials and methods, I have complete freedom (as long as it is secular), so I essentially use TWTM and other recommendations from this board to plan our studies -- all paid for by the school. It has been a total win-win for us, and I could see us staying with the charter for K-8.
ETA: As was mentioned by another poster above, we are also reluctant homeschoolers. My son attended preschool from age 2-5, but was often sent to the director's office because he was bored. When it became apparent that my son was craving more, I began afterschooling him when he was in PK4. There is no G&T program in San Diego Unified until 3rd grade, and by the end of that PK4 year, I knew that I could not send my son to public school to bide his time in the regular K-2 classes. He is now so accelerated that there is really no going back for us. But again, the charter school hybrid has given us the best of both worlds.